Hello! Sometimes I feel the need to do nice things in order to make my master happy, to show him how much I love him and how grateful I am for all he does to me and for all he teaches me. He is an interiorized person, he doesn't express feelings easily and to make him smile is one of my biggest pleasure. I try to be as good as I can as a slave, I try to respect all his orders and to always improve my resistence at pain and humiliation. So, I'm not reffering to this, I'm reffering to special things came by my own initiative, like cute sayings or simbolical presents or actions.
I would appeal to your experience as slaves or masters to share with me things that you did or were did to you that caused happiness to the master.

Anticipating your master's needs and wants shows that you are thinking about him when he's not actively thinking about you and suggests that he occupies a central position in your mind. I think every master wants to see that in their slaves. So anything that demonstrates that you're thinking about him and are aware of what he likes is likely to please him.

"We hurt the ones we love the most. It's a subtle form of compliment."

Also, don't be generic. Buying your master a box of chocolates shows that you're thinking about him, but unless you get the particular type of chocolates that he really likes, it doesn't show that you're thinking about _him_. Let me give you an example. I mentioned to my slave that I really like boxer briefs and boxerjocks. The next day he threw out all of his underwear and bought boxer briefs. That pleased me enormously, because it showed me that he was thinking about what I like. To another master who doesn't particularly care about boxer briefs, that gesture wouldn't have meant much.

"We hurt the ones we love the most. It's a subtle form of compliment."